Messages in this thread | | | Date | Tue, 07 Apr 2015 19:03:30 +0100 | From | Srinivas Kandagatla <> | Subject | Re: [PATCH v4 05/10] eeprom: Add bindings for simple eeprom framework |
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On 07/04/15 18:46, Mark Brown wrote: > On Tue, Apr 07, 2015 at 06:35:49PM +0100, Srinivas Kandagatla wrote: >> On 06/04/15 16:04, Matt Porter wrote: >>> On Mon, Apr 06, 2015 at 09:11:05AM -0500, Rob Herring wrote: > >>>>> The generic binding could really use a "read-only" property here as this >>>>> is a common hardware attribute for many nvmem devices. A serial EEPROM > >> Correct me If am wrong. > >> Regarding write protection/read-only, regmap already has provisions to >> support this feature. regmap would bail out with errors if any attempt to >> write to non-writable regions. It all depends on the data providers how they >> setup the regmap and the bindings for those are specific individual data >> providers I think. > > There is the ability to flag read/write permissions in regmap but I > think there's some suggestion that this should be exposed to userspace > so that it's easier for it to handle things rather than just writing > then coping with any errors.
Yes, That's possible if the data provider use the "read-only" generic binding like MTD partitions which the eeprom framwork could use to set the binary file mode appropriately.
"read-only" property seems to be more generic for all types of data providers.
I will give it a try and document this in the bindings too in next version.
--srini >
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